cover -- 1898 (21 Feb.) I.C.P. 1c. stationery card registered to Vienna with I.C.P. 2c. (2), 4c. pair and C.I.P. 1c. tied by Shanghai pa kua and Dollar chop with additional Hong Kong 2c. carmine (2) with 10c. purple on red cancelled by British P.O. Shanghai c.d.s., Chinese and British registration marks and French packet octagonal d.s.; light soiling but this is believed to be the earliest use of the C.I.P. issue on a postal card. Photo